人MyoDELISA试剂盒使用说明书
免疫球蛋白M测定试剂盒(免疫比浊法)产品技术要求北京世纪沃德生物
免疫球蛋白M测定试剂盒(免疫比浊法)
适用范围:用于体外定量测定人血清中免疫球蛋白M(IgM)的含量。
1.1产品规格
2.1 外观
试剂1应为无色澄清液体,试剂2应为无色或淡褐色澄清液体。
试剂盒标签标识清晰,外包装完整无损。
2.2 装量
不少于瓶签标示量。
2.3 试剂空白
在340nm处测定试剂空白吸光度,应≤0.5。
2.4 分析灵敏度
测试2.0 g/L的被测物时,吸光度变化值(ΔA)应≥0.1。
2.5 线性
2.5.1 在[0.1,
3.0] g/L区间内,线性相关系数r≥0.990。
2.5.2 在[0.1,1.0) g/L区间内,线性绝对偏差不超过±0.15g/L;在[1.0,
3.0] g/L区间内,线性相对偏差不超过±15%。
2.6 精密度
2.6.1 重复性
测试高、低两个水平浓度样本,其结果的变异系数应不超过5%。
2.6.2 批间差
随机抽取三批试剂盒测试同一份样本,批间相对极差(R)应≤10%。
2.7 准确度
待检系统与比对系统测值的相关系数r≥0.975;在[0.1,1.0) g/L区间内,绝对偏差不超过±0.15g/L;在[1.0,3.0] g/L区间内,相对偏差不超过±15%。
2.8稳定性
该产品在2℃~8℃条件下贮存有效期为12个月,取效期末的产品进行检测,应符合2.1、2.3、2.4、2.5、2.6.1、2.7之规定。
ELISA检测试剂盒操作流程
ELISA检测试剂盒操作流程1.准备实验材料和试剂-检验样本:例如血清、尿液、细胞上清液等。
-ELISA试板:根据样本数量选择96孔或384孔的板。
- 试剂盒:包括标准品、washes缓冲液、检测抗体、底物等。
2.样本处理-对于血清等生物液体样本,可用离心将固体物质沉淀并分离下清液。
-样本需储存或运输途中应避免反复冻融。
3.实验板的板液处理-将实验板从包装中取出,将不需要的孔进行盖膜封闭。
- 根据试剂盒说明书,添加适量的板液(Coating Buffer)到每个孔中,使其充分覆盖孔内壁。
-封闭板液的孔,将实验板在2-8℃下放置静置一夜或在37℃下1-2小时孵育。
4.样本添加-倒掉盘液,用PBS或TBST洗板3次,去除残留物。
-将样本加到每个孔中,根据需要添加正样本、负样本和待测样本。
-注意每个样本的剂量和添加的体积,通过试剂盒说明书和实验设计标准控制。
5.抗体添加-清洗步骤同上,将洗板缓冲液加到孔中,重复3次。
-加入检测抗体,根据试剂盒说明书的建议将其添加到孔中。
-要确保抗体的浓度和添加的体积适宜。
6.洗涤-洗涤步骤同上,用洗涤缓冲液洗板,重复3次。
-每次洗涤时,将洗液完全加满孔,静置1分钟,然后倒出洗液。
-注意洗涤时间和洗涤次数的准确控制,以将非特异性结合物质彻底清除。
7.底物添加-清洗步骤同上,将洗液加到孔中,重复3次。
-加入底物,根据试剂盒说明书的建议将其添加到孔中。
-底物液体应完全覆盖孔底,防止反应过程中氧化。
8.反应停止-根据试剂盒说明书,将反应停止液加入到孔中,停止底物的反应。
-注意反应停止液的体积和浓度,以保证反应的准确停止。
9.色谱分析-用ELISA板读板仪读取各个孔的OD值。
-根据试剂盒说明书和实验设计的标准曲线确定样本中目标物质的含量。
-注意设置适当的控制组和标准曲线来保证测量结果的准确性。
总结:ELISA检测试剂盒的操作流程主要包括实验板处理、样本添加、抗体添加、洗涤、底物添加、反应停止和色谱分析。
简述使用elisa试剂盒的操作流程
简述使用elisa试剂盒的操作流程下载温馨提示:该文档是我店铺精心编制而成,希望大家下载以后,能够帮助大家解决实际的问题。
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人(Amylase)ELISA试剂盒说明书,淀粉酶ELISA试剂盒
人(Amylase)ELISA试剂盒说明书,淀粉酶ELISA试剂盒人(Amylase)ELISA试剂盒说明书,淀粉酶ELISA试剂盒供应商:上海乔羽生物有限公司上海乔羽有限公司,有elisa试剂盒,抗体,培养基人(Amylase)ELISA试剂盒说明书,淀粉酶ELISA试剂盒人(Amylase)ELISA试剂盒说明书,淀粉酶ELISA试剂盒,猪促生长激素释放激素(GHRH)ELISA试剂盒,促生长激素释放激素elisakit,猪elisa试剂盒,GHRHelisakit上海乔羽生物供应!人(Amylase)ELISA试剂盒说明书,淀粉酶ELISA试剂盒人(Amylase)ELISA试剂盒说明书,淀粉酶ELISA试剂盒Kit performance1 sensitivity: the minimum detection concentration is less than 1 standard. Linearity of dilution. Sample linear regression and the expected concentration correlation coefficient R value is 0.990.2 specificity: no reaction with other cytokines.3 repeatability: the variation coefficient of the plate and the plate are all less than 10%.Result judgment and analysis1, the instrument value: Yu Bo 450nm ELISA od read the hole on the instrument2, to the OD value for the longitudinal axis (y), corresponding HLA-B27 standard concentration as the abscissa (x), do the corresponding curve, HLA-B27 content in the sample can be according to its OD value by standard curve conversion out corresponding concentration.3, the detection value range: 0-8.0IU/ml4, sensitivity: 0.01 IU/ml人(Amylase)ELISA试剂盒说明书,淀粉酶ELISA试剂盒Elisa kit test rules:1, to ensure the accuracy of the gun, the error can not be more than 2%. Available water and electronic balances are determined. But it's better to have professional personnel to correct it.2, to be equipped with 20ul, 50ul, 100ul, 1000ul and a volley. Draw different liquids, to replace the gun head. Even when the standard is drawn.1, 3 hours before the experiment to remove the kit from the refrigerator, so that a variety of reagents are restored to room temperature, in order to make the results more stable.4, the experiment, to make the substrate to avoid light storage.5, with the gun to draw the liquid speed can not be too fast, so as not to produce bubbles and to absorb the amount is not accurate.6, when the liquid, to use the range and the need to close the gun to suck, reduce the error.7, when the liquid is added to the enzyme standard hole, the liquid contact of the liquid drop and the hole wall of the gun head can be avoided by avoiding the contact of the liquid drop and the hole wall in the gun head.8, after all the liquid added, the enzyme labeled plate on the table in parallel to gently shake 30 seconds, mixed with liquid. Can also use the shaking function of the enzyme standard instrument.9, should try to do two experiments, so as to ensure the accuracy of the data. 10, the results have questions about the sample to be confirmed by other methods.人(Amylase)ELISA试剂盒说明书,淀粉酶ELISA试剂盒Operation steps1 before use, all reagents fully mixed. Do not allow liquid to produce a large number of bubbles, so as to avoid adding a large number of bubbles, resulting in the addition of the error.2 according to the number of samples to be measured and the number of standard products to determine the number of required. Each standard and blank hole is recommended to do the hole. Each sample can be made according to its own quantity, and can be used as a hole in the hole.3 to join the dilution of the standard 50ul in the reaction hole, to add the sample to be measured in the reaction hole 50ul. The biotin labeled antibody was immediately added to the 50ul. Cover the membrane plate, gently oscillating mixing, 37 degrees Celsius incubation 1 hours.4 left hole liquid, each hole filled with washing liquid, oscillating 30 seconds off the washing liquid, pat dry with absorbent paper. Repeat this operation 3 times. If the washing machine with washing, washing times increased once.5 each hole to join 80ul affinity chain enzyme -HRP, gently oscillating mixing, 37 degrees Celsius incubation 30 minutes.6 left hole liquid, each hole filled with washing liquid, oscillating 30 seconds off the washing liquid, pat dry with absorbent paper. Repeat this operation 3 times. If the washing machine with washing, washing times increased once.7 each hole to join the substrate A, B each 50ul, gently oscillating mixing, 37 degrees Celsius incubation 10 minutes. Avoid light.8 remove the enzyme labeled plate, quickly join the 50ul terminator, add the end of the liquid should be measured immediately after the results.9 OD value at the wavelength of 450nm was measured by hole.limitThe result of the above 6 standard is nonlinear, and the result can not be obtained accurately according to the standard curve.人(Amylase)ELISA试剂盒说明书,淀粉酶ELISA试剂盒注意事项:1.试剂盒从冷藏环境中取出应在室温平衡15-30分钟后方可使用,酶标包被板开封后如未用完,板条应装入密封袋中保存。
试剂盒,人试剂盒,人刀豆素A(ConA)ELISA试剂盒使用说明书
人刀豆素A(ConA)ELISA试剂盒使用说明书本试剂仅供研究使用标本:血清或血浆樊克生物供应使用目的:本试剂盒用于测定人血清、血浆及相关液体样本刀豆素A(ConA)含量。
试验原理:ConA试剂盒是固相夹心法酶联免疫吸附实验(ELISA).已知ConA浓度的标准品、未知浓度的样品加入微孔酶标板内进行检测。
先将ConA和生物素标记的抗体同时温育。
洗涤后,加入亲和素标记过的HRP。
再经过温育和洗涤,去除未结合的酶结合物,然后加入底物A、B,和酶结合物同时作用。
产生颜色。
颜色的深浅和样品中ConA的浓度呈比例关系。
刀豆素A试剂盒,elisa试剂盒说明书,ELISA试剂盒,ELISA检测试剂盒,人elisa试剂盒说明书试剂盒内容及其配制试剂盒成份(2-8℃保存)96孔配置48孔配置配制96/48人份酶标板1块板(96T)半块板(48T)即用型塑料膜板盖1块半块即用型标准品:80ng/ml 1瓶(0.6ml)1瓶(0.3ml)按说明书进行稀稀空白对照1瓶(1.0ml)1瓶(0.5ml)即用型标准品稀释缓冲液1瓶(5ml)1瓶(2.5ml)即用型生物素标记的抗ConA抗体1瓶(6ml)1瓶(3.0ml)即用型亲和链酶素-HRP 1瓶(10ml)1瓶(5.0ml)即用型洗涤缓冲液1瓶(20ml)1瓶(10ml)按说明书进行稀释底物A 1瓶(6.0ml)1瓶(3.0ml)即用型底物B 1瓶(6.0ml)1瓶(3.0ml)即用型终止液1瓶(6.0ml)1瓶(3.0ml)即用型标本稀释液1瓶(12ml)1瓶(6.0ml)即用型自备材料1.蒸馏水。
2.加样器:5ul、10ul、50ul、100ul、200ul、500ul、1000ul。
3.振荡器及磁力搅拌器等。
安全性1.避免直接接触终止液和底物A、B。
一旦接触到这些液体,请尽快用水冲洗。
2.实验中不要吃喝、抽烟或使用化妆品。
3.不要用嘴吸取试剂盒里的任何成份。
操作注意事项1.试剂应按标签说明书储存,使用前恢复到室温。
人Myo-DELISA试剂盒使用说明书
人Myo-DELISA试剂盒使用说明书本试剂仅供研究使用目的:本试剂盒用于测定人血清,血浆及相关液体样本中人Myo-D含量。
实验原理:本试剂盒应用双抗体夹心法测定标本中人Myo-D水平。
用纯化的人Myo-D抗体包被微孔板,制成固相抗体,往包被单抗的微孔中依次加入Myo-D,再与HRP标记的Myo-D抗体结合,形成抗体-抗原-酶标抗体复合物,经过彻底洗涤后加底物TMB显色。
TMB在HRP 酶的催化下转化成蓝色,并在酸的作用下转化成最终的黄色。
颜色的深浅和样品中的Myo-D 呈正相关。
用酶标仪在450nm波长下测定吸光度(OD值),通过标准曲线计算样品中人Myo-D浓度。
样本处理及要求:1.血清:室温血液自然凝固10-20分钟,离心20分钟左右(2000-3000转/分)。
仔细收集上清,保存过程中如出现沉淀,应再次离心。
2.血浆:应根据标本的要求选择EDTA、者柠檬酸钠或肝素作为抗凝剂,混合10-20分钟后,离心20分钟左右(2000-3000转/分)。
仔细收集上清,保存过程中如有沉淀形成,应该再次离心。
3.尿液:用无菌管收集,离心20分钟左右(2000-3000转/分)。
仔细收集上清,保存过程中如有沉淀形成,应再次离心。
胸腹水、脑脊液参照实行。
4.细胞培养上清:检测分泌性的成份时,用无菌管收集。
离心20分钟左右(2000-3000转/分)。
仔细收集上清。
检测细胞内的成份时,用PBS(PH7.2-7.4)稀释细胞悬液,细胞浓度达到100万/ml左右。
通过反复冻融,以使细胞破坏并放出细胞内成份。
离心20分钟左右(2000-3000转/分)。
仔细收集上清。
保存过程中如有沉淀形成,应再次离心。
5.组织标本:切割标本后,称取重量。
加入一定量的PBS,PH7.4。
用液氮迅速冷冻保存备用。
标本融化后仍然保持2-8℃的温度。
加入一定量的PBS(PH7.4),用手工或匀浆器将标本匀浆充分。
离心20分钟左右(2000-3000转/分)。
人的二胺氧化酶(DAO)酶联免疫吸附测定试剂盒使用
1:100 稀释(如:10 检测溶液 A / 990 检测稀释液 A),充分混匀,稀释前根据预 先计算好的每次实验所需的总量配制(100 /孔),实际配制时应多配制 0.1-0.2mL。 5、 浓洗涤液:用 580mL 蒸馏水或去离子水将 20mL 浓洗涤液稀释至 600mL,进行 30 倍稀释。 6、 底物溶液:请用灭菌的移液器吸头吸取所需体积的 TMB 至另一干净容器中使用,容 器中剩余的底物应予丢弃,不要倒回 TMB 瓶中。 注意: 1、 标准品请于临用前 15 分钟内配制。该标准品只能使用一次。 2、 标准品的稀释不能直接在板中进行。 3、 标准品、检测溶液 A 工作液、检测溶液 B 工作液请使用相应的稀释液配制,不能混 淆。混匀时要轻轻充分混匀,避免起泡。为保证实验结果的准确请使用微量吸管,并 校准微量加液器。请依据所需的量精确配制,尽量不要微量配制(如吸取检测溶液 A 时,一次不要小于 10 ),以避免造成浓度误差。 4、 请勿重复使用已经稀释过的标准品、检测溶液 A 工作液和检测溶液 B 工作液。 5、 浓洗涤液中如有结晶析出,请先温育至室温,轻轻混匀,至到结晶完全溶解再进行配 制。
标本的采集与保存
1、 血清: 将收集于血清分离管的 全血标本 在室温放置 30 分钟 或 4 过夜 ,然后 1000 g 离心 20 分钟,取上清即可检测,或将上清置于-20 或-80 保存,但应避免 反复冻融。
2、 血浆:用 EDTA 或肝素作为抗凝剂采集标本,并将标本在采集后的 30 分钟内于 2 8 1000 g 离心 15 分钟,取上清即可检测,或将上清置于-20 或-80 保存,但应 避免反复冻融。
试剂准备
1、 使用前将所有的试剂和标本缓慢均衡至室温(18-25 ),试剂不能直接在 37 溶解。 2、 标准品(冻干品):每瓶 标准品用标准品稀释液稀释至 1mL,盖好后室温静置大约
人骨保护素配体(OPGL)elisa试剂盒使用说明书
人骨保护素配体(OPGL)elisa试剂盒使用说明书Elisa kit规格:48孔配置/96孔配置标准品稀释液:1.5ml×1瓶酶标试剂:3 ml×1瓶(48)/6 ml×1瓶(96)【人骨保护素配体(OPGL)elisa试剂盒】本试剂仅供研究使用计算:以标准物的浓度为横坐标,OD值为纵坐标,在坐标纸上绘出标准曲线,根据样品的OD值由标准曲线查出相应的浓度;再乘以稀释倍数;或用标准物的浓度与OD值计算出标准曲线的直线回归方程式,将样品的OD值代入方程式,计算出样品浓度,再乘以稀释倍数,即为样品的实际浓度。
试剂盒组成:封板膜:2片(48)/2片(96)说明书:1份密封袋:1个标准品:2700ng/L 0.5ml×1瓶0.5ml×1瓶2-8℃保存酶标包被板: 1×48 1×96 2-8℃保存样品稀释液: 3ml×1瓶 6 ml×1瓶2-8℃保存显色剂A液: 3ml×1瓶 6 ml×1瓶2-8℃保存显色剂B液: 3ml×1瓶 6 ml×1瓶2-8℃保存终止液: 3ml×1瓶6ml×1瓶2-8℃保存浓缩洗涤液:(20ml×20倍)×1瓶(20ml×30倍)×1瓶2-8℃保存实验原理:本试剂盒应用双抗体夹心法测定标本中人骨保护素配体(OPGL)水平。
用纯化的人骨保护素配体(OPGL)抗体包被微孔板,制成固相抗体,往包被单抗的微孔中依次加入骨保护素配体(OPGL),再与HRP标记的骨保护素配体(OPGL)抗体结合,形成抗体-抗原-酶标抗体复合物,经过彻底洗涤后加底物TMB显色。
TMB在HRP酶的催化下转化成蓝色,并在酸的作用下转化成最终的黄色。
颜色的深浅和样品中的骨保护素配体(OPGL)呈正相关。
用酶标仪在450nm波长下测定吸光度(OD值),通过标准曲线计算样品中人骨保护素配体(OPGL)浓度。
人抗人类免疫缺陷病毒抗体ELISA试剂盒说明书
人抗人类免疫缺陷病毒抗体ELISA试剂盒说明书人抗人类免疫缺陷病毒抗体ELISA试剂盒说明书产品规格:96T/48T供应商:上海樊克生物有限公司本产品只用于科研实验人抗人类免疫缺陷病毒抗体ELISA试剂盒说明书,小鼠(LR/Ob-R)ELISA试剂盒,苗条素受体elisakit elisa试剂盒上海樊克生物供应!人抗人类免疫缺陷病毒抗体ELISA试剂盒说明书Liquid type specimen:Including serum, plasma, urine, pleural effusion and ascites, cerebrospinal fluid, cell culture supernatant, etc..1) serum:Room temperature blood natural coagulation 10-20 minutes after the centrifuge about 20 minutes (2000-3000 turn / min). Carefully collect the supernatant. In the process of preservation, if there is precipitation, should be re - centrifugal.2) plasma:According to the requirements of the specimens of choice of EDTA, sodium citrate or heparin as an anticoagulant, 10-20 minutes after mixing, centrifuged for 20 minutes or so (2000-3000 r.p.m.). Carefully collect the supernatant. In the process of preservation, if there is precipitation, should be re - centrifugal.3) urine:Collecting with sterile tubes. Centrifugal 20 minutes or so (2000-3000 turn / min). Carefully collect the supernatant. In the process of preservation, if there is precipitation, should be re - centrifugal. Pleural effusion, cerebrospinal fluid with reference to this practice.4) cell culture supernatant:To collect the ingredients for the detection of secretory components. Centrifugal 20 minutes or so (2000-3000 turn / min). Carefully collect the supernatant. Detection of cell components, with PBS (PH7.2-7.4) diluted cell suspension, the cell concentration reached 1 million /ml or so. Through repeated freezing and thawing, in order to make the cell damage and release of intracellular components. Centrifugal 20 minutes or so (2000-3000 turn / min). Carefully collect the supernatant. In the process of preservation, if there is precipitation, should be re - centrifugal.5) tissue specimen:After cutting the specimen, weigh the weight. Add a certain amount of PH7.4, PBS. Rapid freezing with liquid nitrogen. The specimens were melted and still maintained at 2-8. Add a certain amount of PBS (PH7.4), with a hand or a homogenate of the specimen homogenate full. Centrifugal 20 minutes or so (2000-3000 turn / min). Carefully collect the supernatant. Be detected after a repackaging, remaining frozen spare.人抗人类免疫缺陷病毒抗体ELISA试剂盒说明书国产/进口Elisa试剂盒,96T/48TElisa试剂盒, 96T/48Telisakit价格人抗人类免疫缺陷病毒抗体ELISA试剂盒说明书Elisa试剂盒操作步骤:3. 温育:用封板膜封板后置37℃温育30分钟。
ELISA检测试剂盒使用指南
ELISA检测试剂盒使用指南ELISA(酶联免疫吸附试验)是一种常用的免疫学实验方法,用于检测病原体、抗体或其他分子的存在和浓度。
它具有高灵敏度、高特异性、易操作和较低成本的优势,被广泛应用于生物医学研究、临床诊断和免疫学领域。
本篇文章将介绍ELISA检测试剂盒的使用指南,包括实验准备、试剂的使用步骤和结果解读。
一、实验准备1.阅读检测项目的说明书:在使用试剂盒前,仔细阅读说明书,了解试剂的使用方法、灵敏度和特异性等关键信息。
2.样本准备:根据实验要求,准备样本。
如果需要检测血清中的抗体水平,可以采集血液样本,离心分离血清;如果需要检测细胞培养上清中的分子,将上清收集,并使其清晰,避免细胞或杂质的污染。
3.样本预处理:根据实验需求,对样本进行必要的预处理。
例如,可以通过加热、稀释、酶解等方式来处理样本,以改变样本组分和浓度。
4.准备品质控制样品:制备阳性和阴性控制样品,用于评估试剂盒和实验操作的稳定性和准确性。
5.实验器材准备:准备所需实验器材,如酶标板、移液器、微孔板洗涤仪等。
确保器材的干净和完整,并按照说明书要求对其进行预处理。
二、试剂使用步骤1.试剂准备:根据说明书要求,将试剂从冰箱中取出,并在室温下放置一段时间使其恢复到室温。
确保试剂瓶盖紧闭,并避免暴露在直接阳光下。
2.实验操作:按照说明书的要求,将试剂加入到酶标板中,并根据实验设计进行标准曲线的设置。
标准曲线用于测量未知样品的数量,并计算出浓度。
3.孵育:根据试剂盒的要求,将酶标板放入孵育箱中进行孵育。
孵育温度和时间应根据实验要求进行调整。
4.洗涤:使用洗涤缓冲液对酶标板上的不特异性结合物进行洗涤。
洗涤过程应准确控制洗涤孔板次数和洗涤液的体积。
5.补液:在洗涤完成后,加入辣根过氧化物酶标况稀释液,促进酶标物与特异性结合物的反应。
6.孵育:根据试剂盒的要求,将酶标板放入孵育箱中进行二次孵育。
7.反应停止:根据试剂盒的要求,加入相应的停止液,停止酶反应。
仪 标酶 格规 准标 1
人低密度脂蛋白(LDL)酶联免疫分析试剂盒使用说明书本试剂盒仅供研究使用检测范围:6.25ng/ml-400ng/ml最低检测限:1.56ng/ml特异性:本试剂盒可同时检测天然或重组的人LDL,且与其他相关蛋白无交叉反应。
有效期:6个月预期应用:ELISA法定量测定人血清、血浆、细胞培养上清或其它相关生物液体中LDL含量。
说明1.试剂盒保存:-20℃(较长时间不用时);2-8℃(频繁使用时)。
2.浓洗涤液低温保存会有盐析出,稀释时可在水浴中加温助溶。
3.中、英文说明书可能会有不一致之处,请以英文说明书为准。
4.刚开启的酶联板孔中可能会含有少许水样物质,此为正常现象,不会对实验结果造成任何影响。
概述血液中胆固醇可分为低密度脂蛋白(LDL)、极低密度脂蛋白(VLDL)和高密度脂蛋白(HDL)。
LDL是富含胆固醇的脂蛋白,其胆固醇主要来自从CE转运的高密度脂蛋白中的胆固醇。
LDL)是人血浆中含量最多的一种血浆脂蛋白,携带人体血液中2/3以上的胆固醇,它在血浆中以球形颗粒存在,其分子量大约为3000kD,直径为22μm,密度为1.016-1.063mg/ml。
目前认为血浆中LDL的来源有两条途径:①主要途径是由VLDL异化代谢转变而来;②次要途径是肝合成后直接分泌到血液中。
LDL通过载脂蛋白B(Apo-B)与内膜下细胞的B受体结合,将胆固醇从肝细胞运往组织细胞。
LDL的降解是经LDL受体途径进行代谢,细胞膜表面的被覆陷窝是LDL受体存在部位,即LDL中的Apo B100被受体识别,将LDL结合到受体上陷窝内,其后再与膜分离形成内吞泡,在内吞泡内经膜H-ATPase作用,pH降低变酸,LDL与受体分离并与溶酶体融合后,再经酶水解产生胆固醇进入运输小泡体,或者又经ACAT作用再酯化而蓄积。
血浆中65%-70%的LDL是依赖LDL受体清除,少部分(约1/3)被周围组织(包括血管壁)摄取异化。
一旦LDL受体缺陷,VLDL 残粒由正常时大部分经肝LDL受体识别,而改为大部分转变成LDL,使血浆中LDL浓度增加。
ELISA 检测试剂盒 说明书
本试剂盒只能用于科学研究,不得用于医学诊断人(Human Human))17-17-羟皮质类固醇(羟皮质类固醇(羟皮质类固醇(17-OHCS 17-OHCS 17-OHCS))ELISA 检测试剂盒使用说明书检测原理试剂盒采用双抗体一步夹心法酶联免疫吸附试验(ELISA)。
往预先包被17-羟皮质类固醇(17-OHCS)抗体的包被微孔中,依次加入标本、标准品、HRP标记的检测抗体,经过温育并彻底洗涤。
用底物TMB显色,TMB在过氧化物酶的催化下转化成蓝色,并在酸的作用下转化成最终的黄色。
颜色的深浅和样品中的17-羟皮质类固醇(17-OHCS)呈正相关。
用酶标仪在450nm 波长下测定吸光度(OD 值),计算样品浓度。
样品收集、处理及保存方法1.血清:使用不含热原和内毒素的试管,操作过程中避免任何细胞刺激,收集血液后,3000转离心10分钟将血清和红细胞迅速小心地分离。
2.血浆:EDTA、柠檬酸盐或肝素抗凝。
3000转离心30分钟取上清。
3.细胞上清液:3000转离心10分钟去除颗粒和聚合物。
4.组织匀浆:将组织加入适量生理盐水捣碎。
3000转离心10分钟取上清。
5.保存:如果样本收集后不及时检测,请按一次用量分装,冻存于-20℃,避免反复冻融,在室温下解冻并确保样品均匀地充分解冻。
自备物品1.酶标仪(450nm)2.高精度加样器及枪头:0.5-10uL、2-20uL、20-200uL、200-1000uL3.37℃恒温箱操作注意事项1.试剂盒保存在2-8℃,使用前室温平衡20分钟。
从冰箱取出的浓缩洗涤液会有结晶,这属于正常现象,水浴加热使结晶完全溶解后再使用。
2.实验中不用的板条应立即放回自封袋中,密封(低温干燥)保存。
3.浓度为0的S0号标准品即可视为阴性对照或者空白;按照说明书操作时样本已经稀释5倍,最终结果乘以5才是样本实际浓度。
4.严格按照说明书中标明的时间、加液量及顺序进行温育操作。
5.所有液体组分使用前充分摇匀。
人肌红蛋白(MYO MB)酶联免疫吸附测定试剂盒 说明书
人肌红蛋白(MYO/MB)酶联免疫吸附测定试剂盒使用说明书本试剂盒仅供研究研究使用预期应用ELISA法定量测定人血清、血浆、细胞培养物上清或其它相关液体中MB含量。
概述Mb是一种氧结合血红素蛋白,分子量17,800道尔顿,主要分布于心肌和骨骼肌组织,在急性心肌梗塞(AMI)时,心肌细胞坏死,Mb稀放入血液中。
在症状出现约2~3小时后,血中Mb可超出正常上限,9~12小时达到峰值,24~36小时后恢复正常。
实验原理本试剂盒应用双抗体夹心酶标免疫分析法测定标本中MB水平。
用纯化的抗体包被微孔板,制成固相抗体,往包被单抗的微孔中依次加入MB、生物素化的抗人MB抗体、HRP标记的亲和素,经过彻底洗涤后用底物TMB显色。
TMB在过氧化物酶的催化下转化成蓝色,并在酸的作用下转化成最终的黄色。
颜色的深浅和样品中的MB呈正相关。
用酶标仪在450nm波长下测定吸光度(OD值),计算样品浓度。
试剂盒组成1.酶联板:一块(96孔)2.标准品(冻干品):2瓶,每瓶临用前以样品稀释液稀释至1ml,其浓度为250ng/mL,做系列倍比稀释后,分别稀释成250ng/mL,125ng/mL,62.5ng/mL,31.2ng/mL,15.6ng/mL,7.8ng/mL,3.9ng/mL,其原液直接作为最高标准浓度,样品稀释液直接作为标准浓度0mg/mL,临用前15分钟内配制。
3.样品稀释液:1×10ml/瓶。
4.抗体稀释液A:1×10ml/瓶。
5.抗体稀释液B:1×10ml/瓶。
6.检测溶液A:1×120ul/瓶(1:100)临用前以抗体稀释液A1:100稀释。
7.检测溶液B:1×120ul/瓶(1:100)临用前以抗体稀释液B1:100稀释。
8.底物溶液:1×10ml/瓶。
9.浓洗涤液:1×30ml/瓶,使用时每瓶用蒸馏水稀释25倍。
10.终止液:1×10ml/瓶(2N H2SO4)。
淀粉酶,人ELISA试剂盒说明书 人淀粉酶(Amylase)ELISA试剂盒使用说明书
错误!未找到引用源。
[淀粉酶] [淀粉酶,人ELISA试剂盒说明书人淀粉酶(Amylase)ELISA试剂盒使用说明书]错误!未找到引用源。
淀粉酶,人ELISA试剂盒说明书人淀粉酶(Amylase)ELISA试剂盒使用说明书本试剂仅供研究使用标本:血清或血浆上海乔羽生物供应使用目的:本试剂盒用于测定人血清、血浆及相关液体样本淀粉酶(Amylase)含量。
试验原理:Amylase试剂盒是固相夹心法酶联免疫吸附实验(ELISA).已知Amylase浓度的标准品、未知浓度的样品加入微孔酶标板内进行检测。
先将Amylase和生物素标记的抗体同时温育。
洗涤后,加入亲和素标记过的HRP。
再经过温育和洗涤,去除未结合的酶结合物,然后加入底物A、B,和酶结合物同时作用。
产生颜色。
颜色的深浅和样品中Amylase的浓度呈比例关系。
淀粉酶试剂盒,elisa试剂盒说明书,ELISA试剂盒,ELISA检测试剂盒,人elisa试剂盒说明书试剂盒内容及其配制试剂盒成份(2-8℃保存)96孔配置48孔配置配制96/48人份酶标板1块板(96T)半块板(48T)即用型塑料膜板盖1块半块即用型标准品:80ng/ml 1瓶(0.6ml)1瓶(0.3ml)按说明书进行稀稀空白对照1瓶(1.0ml)1瓶(0.5ml)即用型标准品稀释缓冲液1瓶(5ml)1瓶(2.5ml)即用型生物素标记的抗Amylase抗体1瓶(6ml)1瓶(3.0ml)即用型亲和链酶素-HRP 1瓶(10ml)1瓶(5.0ml)即用型洗涤缓冲液1瓶(20ml)1瓶(10ml)按说明书进行稀释底物A 1瓶(6.0ml)1瓶(3.0ml)即用型底物B 1瓶(6.0ml)1瓶(3.0ml)即用型终止液1瓶(6.0ml)1瓶(3.0ml)即用型标本稀释液1瓶(12ml)1瓶(6.0ml)即用型自备材料1.蒸馏水。
2.加样器:5ul、10ul、50ul、100ul、200ul、500ul、1000ul。
人体分泌素ELISA试剂盒说明书
Human secretin ELISA KitFor the quantitative in vitro determination of Human secretin concentrations in serum - plasma - celiac fluid - tissue homogenate - body fluidFOR LABORA TORY RESEARCH USE ONLY.NOT FOR USE IN DIAGNOSTIC PROCEDURES.This package insert must be read in its entirety before using this product.ELISAENZYME LINKED IMMUNOSORBENT ASSAYINTENDED USE AND TEST PRINCIPLEThis secretin ELISA kit is intended Laboratory for Research use only and is not for use in diagnostic or therapeutic procedures. The Stop Solution changes the color from blue to yellow and the intensity of the color is measured at 450 nm using a spectrophotometer. In order to measure the concentration of secretin in the sample, this secretin ELISA Kit includes a set of calibration standards. The calibration standards are assayed at the same time as the samples and allow the operator to produce a standard curve of Optical Density versus secretin concentration. The concentration of secretin in the samples is then determined by comparing the O.D. of the samples to the standard curve.SAMPLE COLLECTION AND STORAGESSerum - Use a serum separator tube and allow samples to clot for 2 hours at room temperature or overnight at 4℃ before centrifugation for 20 minutes at approximately 2000×g. Remove serum and assay immediately or aliquot and store samples at -20℃. Avoid repeated freeze-thaw cycles Plasma - Collect plasma using heparin as an anticoagulant. Centrifuge samples for 30 minutes at 2000×g at 2-8℃within 30 minutes of collection. Store samples at -20℃. Avoid repeated freeze-thaw cycles.Cell culture supernates, tissue homogenate and other biological fluids - Remove particulates by centrifugation and assay immediately or aliquot and store samples at -20℃. Avoid repeated freeze-thaw cycles.Note: The samples shoule be centrifugated dequately and no hemolysis or granule was allowed.MATERIALS REQUIRED BUT NOT SUPPLIED1. 37 ℃ incubator2. Standard microplate reader capable of measuring absorbance at 450 nm3. Precision pipettes, disposable pipette tips and Absorbent paper4. Distilled or deionized waterREAGENTS PROVIDEDAll reagents provided are stored at 2-8°C. Refer to the expiration date on the label.Name 96 determinations 48 determinationsMICROTITER PLATE 8*12strips 8*6stripsSTANDARD(6 vial)0.3ml/vial 0.3ml/vialSAMPLE DILUENT 6.0ml 3.0mlENZYME CONJUGATE 10.0ml 5.0mlWASH SOLUTION 25ml 15mlSUBSTRA TE A 6.0ml 3.0mlSUBSTRA TE B 6.0ml 3.0mlSTOP SOLUTION 6.0ml 3.0mlClosure plate membrane 2 2User manual 1 1Sealed bags 1 1Note:1. Standard concentration was followed by: 200, 100, 50, 25, 12.5, 0 pg/mL.2. If samples generate values higher than the highest standard, please dilute thesamples with Sample Diluent and repeat the assay.PRECAUTIONS1.Do not substitute reagents from one kit lot to another. Standard, conjugate and microtiter plates are matched for optimal performance. Use only the reagents supplied by manufacturer.2.Allow kit reagents and materials to reach room temperature (20-25°C) before use. Do not use water baths to thaw samples or reagents.3.Do not use kit components beyond their expiration date.e only deionized or distilled water to dilute reagents.5.Do not remove microtiter plate from the storage bag until needed. Unused strips should be stored at 2-8°C in their pouch with the desiccant provided.e fresh disposable pipette tips for each transfer to avoid contamination.7.Do not mix acid and sodium hypochlorite solutions.8.Serum and plasma should be handled as potentially hazardous and capable of transmitting disease. Disposable gloves must be worn during the assay procedure, since no known test method can offer complete assurance that products derived from Rat blood will not transmit infectious agents. Therefore, all blood derivatives should be considered potentially infectious and good laboratory practices should be followed.9.All samples should be disposed of in a manner that will inactivate viruses.10.Liquid Waste: Add sodium hypochlorite to a final concentration of 1.0%. The waste should be allowed to stand for a minimum of 30 minutes to inactivate the viruses before disposal.11.Substrate Solution is easily contaminated. If bluish prior to use, do not use.12.Substrate B contain 20% acetone, keep this reagent away from sources of heat or flame.13.Remove all kit reagents from refrigerator and allow them to reach room temperature ( 20-25°C).REAGENT PREPARATION AND STORAGEWash Solution (1X) - Dilute 1 volume of Wash solution (20X) with 19 volumes of deionized or distilled water. Wash Solution is stable for 1 month at 2-8°C.ASSAY PROCEDURE1. Prepare all reagents before starting assay procedure. It is recommended that all Standards and Samples be added in duplicate to the Microtiter plate.2. Add 50μl of Standard or Sample to the appropriate wells. Blank well doesn’t add anyting.3. Add 100μl of Enzymeconjugate to standard wells and sample wells except the blank well, cover with an adhesive strip and incubate for 60 minutes at 37°C.4. Wash the Microtiter Plate 4 times.Manual Washing - Remove incubation mixture by aspirating contents of the plate into a sink or proper waste container. Using a squirt bottle, fill each well completely with Wash Solution (1X),then aspirate contents of the plate into a sink or proper waste container. Repeat this procedure for a total of four times. After final wash, invert plate, and blot dry by hitting plate onto absorbent paper or paper towels until no moisture appears. Note: Hold the sides of the plate frame firmly when washing the plate to assure that all strips remain securely in frame.Automated Washing- Aspirate all wells, then wash plates four times using Wash Buffer (1X). Always adjust your washer to aspirate as much liquid as possible and set fill volume at 350μL/well/wash. After final wash, invert plate, and blot dry by hitting plate onto absorbent paper or paper towels until no moisture appears.5. Add Substrate A 50μl and Substrate B 50μl to each well. Gently mix and incubate for 15 minutes at 37°C. Protect from light.6. Add 50μl Stop Solution to each well. The color in the wells should change from blue to yellow. If the color in the wells is green or the color change does not appear uniform, gently tap the plate to ensure thorough mixing.7. Read the Optical Density (O.D.) at 450 nm using a microtiter plate reader within 15 minutes.CALCULATION OF RESULTS1.This standard curve is used to determine the amount in an unknown sample. The standard curve is generated by plotting the average O.D. (450 nm) obtained for each of the six standard concentrations on the vertical (X) axis versus the corresponding concentration on the horizontal (Y) axis.2.First, calculate the mean O.D. value for each standard and sample. All O.D. Values are subtracted by the mean value of the balnk well before result interpretation. Construct the standard curve using graph paper or statistical software.3.To determine the amount in each sample, first locate the O.D. value on the Y-axis and extend a horizontal line to the standard curve. At the point of intersection, draw a vertical line to the X-axis and read the corresponding concentration.4.Any variation in operator, pipetting and washing technique, incubation time or temperature, and kit age can cause variation in result. Each user should obtain their own standard curve.5.Intra-assay CV(%) is less than 10% and Inter-assay CV(%) is less than 15%.6.Assay range: 6.25 pg/mL – 200 pg/mL.7. Sensitivity: The minimum detectable dose of Human secretin is typically less than 1.0 pg/mL.8. Cross-reactivity: This assay recognizes recombinant and natural Human secretin. No significantcross-reactivity or interference was observed.9. Storage: 2-8℃ (Use frequently); six months (-20℃)。
MyosinELISA试剂盒说明书
MyosinELISA试剂盒说明书MyosinELISA试剂盒说明书产品规格:96T/48T。
保存条件:2-8℃低温保存保质期:6个月,所有试剂盒均提供最新批次。
试剂盒成分:酶标板,试剂,标准品等。
供应商:上海乔羽生物有限公司上海乔羽有限公司,有elisa试剂盒,抗体,培养基MyosinELISA试剂盒说明书Elisa试剂盒实验规则:1、要保证移液枪的准确性,误差不能超过2%。
可用水和电子天平进行确定。
但最好有专业人员进行矫正。
2、要配备20ul、50ul、100ul、1000ul和排枪各一支。
吸取不同的液体后,要更换枪头。
即使是吸取标准品时。
3、要在实验前1小时将试剂盒从冰箱中取出,使各种试剂都恢复到室温,以使结果更稳定。
4、实验时,要使底物避光保存。
5、用枪吸取液体时速度不能太快,以免产生气泡而使吸取量不准确。
6、吸取液体时,要用量程和需要量接近的枪去吸,减少误差。
7、将液体加到酶标孔中时,避免枪头和孔内液体接触,可使枪头上的液滴和孔壁接触,液滴会自然流下去。
8、液体全部加完后,可将酶标板在桌子上平行轻轻晃动30秒,混匀液体。
也可以用酶标仪的晃动功能。
9、应尽量做双孔实验,这样才能保证数据的准确性。
10、对结果有疑问的样品要用其它方法进行确证。
MyosinELISA试剂盒说明书液体类标本:包括血清、血浆、尿液、胸腹水、脑脊液、细胞培养上清等。
)血清:室温血液自然凝固10-20分钟后,离心20分钟左右(2000-3000转/分)。
仔细收集上清。
保存过程中如有沉淀形成,应再次离心。
)血浆:应根据标本的要求选择EDTA、柠檬酸钠或肝素作为抗凝剂,混合10-20分钟后,离心20分钟左右(2000-3000转/分)。
仔细收集上清。
保存过程中如有沉淀形成,应再次离心。
)尿液:用无菌管收集。
离心20分钟左右(2000-3000转/分)。
仔细收集上清。
保存过程中如有沉淀形成,应再次离心。
胸腹水、脑脊液参照此实行。
人布鲁氏菌病抗体酶联免疫吸附测定试剂盒使用说明书
测量各孔的光密度(OD 值)。 注: 1. 每次实验留一孔作为空白调零孔,该孔不加任何试剂,只是最后加底物溶液及 2NH2SO4。
测量时先用此孔调 OD 值至零。 2.为防止样品蒸发,试验时将反应板放于铺有湿布的密闭盒内。 洗板方法 手工洗板方法:吸去(不可触及板壁)或甩掉酶标板内的液体;在实验台上铺垫几层吸水纸, 酶标板朝下用力拍几次;将推荐的洗涤缓冲液至少 0.4ml 注入孔内,浸泡 1-2 分钟,根据需要, 重复此过程数次。 自动洗板:如果有自动洗板机,应在熟练使用后再用到正式实验过程中。 特异性
品 100ul,注意不要有气泡,轻轻混匀,酶标板加上盖,37℃反应 120 分钟。 2. 弃去液体,甩干,不用洗涤。 3. 每孔加检测溶液 A 工作液 100ul,37℃,60 分钟。洗板 3 次,350ul/每孔,甩干。 4. 每孔加检测溶液 B 工作液 100ul,37℃,60 分钟,洗板 5 次,甩干。 5. 依序每孔加底物溶液 90ul,37℃避光显色 30 分钟(此时肉眼可见标准品的前 3-4 孔有明显
人布鲁氏菌病抗体酶联免疫吸附测定试剂盒使用说明书
产品编号:E2191h
本试剂盒仅供体外研究使用!
预期应用 ELISA 法定量测定人血清、血浆、组织匀浆、细胞培养物上清或其它相关液体中布鲁氏菌
分析法测定标本中布鲁氏菌病抗体水平。用纯化的抗体 包被微孔板,制成固相抗体,往包被单抗的微孔中依次加入布鲁氏菌病标准品或受检样本、生 物素化的抗人布鲁氏菌病抗体、HRP 标记的亲和素,经过彻底洗涤后用底物 TMB 显色。TMB 在过氧化物酶的催化下转化成蓝色,并在酸的作用下转化成最终的黄色。颜色的深浅和样品中 的布鲁氏菌病抗体呈正相关。用酶标仪在 450nm 波长下测定吸光度(OD 值),计算样品浓度。 试剂盒组成及试剂配制 1. 酶联板:一块(96 孔) 2. 标准品(冻干品):2 瓶,每瓶临用前以样品稀释液稀释至 1ml,盖好后静置 10 分钟以上,
1、ELISA 试剂盒使用说明书(5 孔板格式)
ELISA kitInstruction Manual5-plate formatJuly, 2006For research use only.Not for use in diagnostic or therapeutic procedures.ContentsAbbreviations 2 Introduction 3 Contents of the kit 4 Hazard information 4 Materials and reagents required but not provided 4 Working solutions 4 General procedure 5 Coating antibodies 5 Blocking 5 Test samples and standards 5 Biotinylated detector antibodies 5 SPP conjugate 5 Substrate 5 Cytokine standards 6 Storage kit reagents 6 Directions for washing 7 Trouble shooting 7 References 8AbbreviationsAPC Antigen presenting cellsBSA Bovine serum albuminCD Cluster of differentiationCSB Cytokine stabilization bufferDMSO Dimethyl sulfoxideELISA Enzyme linked immunosorbent assayGM-CSF Granulocyte-Macrophage Colony Stimulating Factor IFN InterferonIL InterleukinMHC Major histocompatibility complexOD Optical densityPB Phosphate bufferPBS Phosphate buffered salinePBST PBS containing 0.05% Tween-20PBST-B PBST containing 0.5% bovine serum albuminSPP Streptavidin-HRP polymerT h T helper subsetTMB TetramethylbenzidineTNF Tumor necrosis factorIntroductionCytokines are a group of regulatory proteins critically involved in many physiological processes such as immune recognition, cell differentiation and cell proliferation. They have been identified in many vertebrate species and are produced by a variety of different cell types. Cytokines are usually produced transiently and locally, acting in a paracrine or autocrine manner. They interact with high affinity cell surface receptors specific for each cytokine or cytokine group and are active at very low concentrations mostly in the picogram range.It is well known now that the type of an antigen-specific immune response largely depends on the selection or preferential activation of defined CD4+T cell subsets (i.e. T h1 and T h2). Activation of these subsets is characterized by the secretion of distinct patterns of cytokines. T h1, but not T h2 cells, primarily secrete IL-2 and IFN-γ while T h2, but not T h1 cells, produceIL-4, IL-5, IL-6, IL-10 and IL-13. Other cytokines, such as TNF-α and GM-CSF are produced by both T h subsets. In addition, the production of IL-12 and IL-10, produced by antigen presenting cells (APC) such as macrophages and dendritic cells, critically contributes to the preferential expansion of T h1- or T h2-type of cells. For instance, early production of IL-12 is considered essential for the development of T h1 cells. On the other hand, the absence or low concentrations of IL-12 and IFN-γ in the early phase of an immune response and concomitant production of IL-4 by cells of the mastcell/basophil lineage or T cells themselves is known to favor the development of T h2 cells. In addition to their regulatory effects on T h subset differentiation, the cytokines released by the two types of T h cells also produce distinct effector functions. For instance, IL-4 and IFN-γhave differential or antagonistic activities on immunoglobulin isotype selection or MHC class II expression. Therefore, the properties of an immune response can be best studied by determining the amounts of cytokines produced by the responding T cells and APC.Contents of the kitItemsQuantity(5-plate format)StorageconditionsCoating antibodies 1 vial 4ºC (39ºF)Cytokine standard 5 vials 4ºC (39ºF)Biotinylated detector antibodies 1 vial 4ºC (39ºF)SPP conjugate (Streptavidin-HRP polymer) 1 vial ≤ -20ºC (-4°F)TMB substrate tablets 5 4ºC (39ºF)Substrate buffer capsules 5 Rt*BSA stock solution (10%) 2 vials (24 ml) 4ºC (39ºF)Cytokine stabilization buffer (CSB)** 1 vial (5 ml) 4ºC (39ºF)Tween-20 1 vial (5 ml) Rt*ELISA plates8 Rt*Adhesive cover slips 10 Rt** Room temperature** For serum and plasma samples only; see under “Test samples and standards”Materials and reagents required but not provided•PB stock: dissolve 96.0 g Na2HPO4.2H2O plus 17.5 g KH2PO4in 1.0 L distilled water and adjust pH to 7.4•Sterile distilled water•H2SO4•Dimethyl sulfoxide (DMSO)•Pipetting devices for the accurate delivery of volume required for the assay performance •Plate washer: automated or manual (squirt bottle, manifold dispenser, etc)•Reading device for microtiter-plate set to 370, 450 and/or 655 nmWorking solutions•PBS: add 10 ml PB stock and 8.8 g NaCl to 1 L distilled water. Adjust pH to 7.4.Alternatively, use commercially available liquid PBS from Invitrogen or other suppliers.Do not use commercially available PBS tablets for the preparation of the coating solution (the filler in the tablets interferes with the coating process).•PBST: 0.5 ml Tween-20 dissolved in 1 L PBS.•PBST-B: 2 ml BSA stock solution (10%) added to 38 ml PBST.•Blocking buffer: 2 ml BSA stock solution (10%) added to 18 ml PBS (for 1 ELISA plate). •Substrate buffer: the contents of one capsule is dissolved in 100 ml distilled water (takes approximately 5 minutes). For optimal performance, the buffer solution should be used within60 minutes.•Stopping solution: 2 M H2SO4TMB (tetramethylbenzidine) and sodium perborate (in substrate buffer)General procedureCoating antibodies•Reconstitute the lyophilized antibodies by injecting 250 µl of sterile distilled water into the vial. Mix the solution gently for approximately 15 seconds and allow it to stand for 2 minutes at room temperature. Avoid vigorous shaking. To coat 96 wells of an ELISA plate 50 µl is pipetted out of the vial (or use a frozen aliquot of 50 µl; see "Storage kit reagents") and added to 5 ml PBS. Mix gently.•Add 50 µl of diluted antibody solution to each well of the ELISA plate and fill up to 100 µl with PBS.•Seal the plate to prevent evaporation.Incubate overnight at 4ºC or alternatively 1 to 2 hours at 37ºC.Blocking•Remove the coating antibody solution and wash the wells at least six times with PBST. •Add 200 µl of blocking buffer.•Seal the plate and incubate at 37ºC for 1 hour.Test samples and standards•Remove the blocking buffer but do not wash.•Add 1/20 volume of CSB to serum or plasma samples but not to other samples such as cell culture supernatants; CSB inhibits the degradation of cytokines in pure serum or plasma. •Dilute standards and test samples in an appropriate diluent (see “Cytokine standards”). •Add 100 µl to each well.•Seal the plate and incubate at 37ºC for 2 hours or overnight at 4ºC.Biotinylated detector antibodies•Remove test samples/standards and wash the wells at least six times with PBST. •Reconstitute the lyophilized antibodies by injecting 0.5 ml of sterile distilled water into the vial. Mix the solution gently for approximately 15 seconds and allow it to stand for 2 minutes at room temperature. Avoid vigorous shaking. Hundred microliter is pipetted out of the vial (or use a frozen aliquot of 100 µl; see "Storage kit reagents") and added to 10 ml PBST-B.Mix gently.•Add 100 µl of diluted antibody solution to each well.•Seal the plate and incubate at 37ºC for 1 hour.SPP conjugate•Remove detector antibody solution and wash the wells at least six times with PBST. •Reconstitute the contents of the vial by injecting 0.5 ml of sterile distilled water into the vial.Mix the solution gently for approximately 15 seconds and allow it to stand for 1 minute at room temperature. Avoid vigorous shaking. Hundred microliter is pipetted out of the vial (or use a frozen aliquot of 100 µl; see "Storage kit reagents") and added to 10 ml PBST-B. Mix gently.•Add 100 µl to each well.•Seal the plate and incubate at 37ºC for 1 hour.Substrate•Remove SPP conjugate and wash the wells at least six times with PBST.•Dissolve one TMB tablet in 1.0 ml DMSO (vortex at high speed for 5 minutes for complete dissolution)and than add 10 ml substrate buffer.•Mix thoroughly and immediately dispense 100 µl into each well. Leave the plate on the laboratory bench at room temperature (color development between 10 and 30 minutes).The substrate produces a soluble end-product that is blue in color and can be read spectrophotometrically at 370 or 655 nm. The reaction can be stopped by adding 50 µl of2 M H2SO4 (resulting in a yellow solution which can be read at 450 nm).Cytokine standardsFor maximum recovery, the vial with lyophilized cytokine standard should be reconstituted in 0.5 ml distilled water and allowed to stand for 1 minute at room temperature. Thereafter, the reconstituted cytokine standard (stock solution) is placed on melting ice and is immediately diluted as indicated below (preferentially within one hour). Use vials with cytokine standards only once.Please note that temperature of buffers and standard solution(s) should now be kept at 0-4ºC until use in the ELISA.The total amount of cytokine standard is indicated on the label of the vial (ng/vial). After reconstitution in 0.5 ml water, the concentration (ng/ml) will become twice the amount on the label [e.g. amount on label is 4.8 ng/vial; after reconstitution, the concentration becomes9.6 ng/ml = 9600 pg/ml].The standard stock solution is diluted to 320 pg/ml in PBST-B (highest concentration cytokine to be used in the standard range).The linear region of the cytokine standard curve is now obtainable in a series of two-fold dilutions in PBST-B ranging from 320 to 5 pg/ml. Always include a blank control (PBST-B only) in the standard range.Before establishing the standard curve, the OD value of the blank control (OD.bl) is subtracted from the measured OD values of the different standard solutions. The standard curve is now plotted as the standard cytokine concentration versus the corresponding (measured) OD value minus OD.bl. In addition, the actual OD values of the test samples are determined by subtracting OD.bl from the measured OD values.The concentration of the cytokine in the test sample can then be interpolated from the standard curve. It is useful to prepare a series of dilutions of the unknown test sample to assure that the OD will fall in the linear portion of the standard curve.Note 1: The OD value measured for the blank control (OD.bl) must be below 0.2.Note 2: for measuring cytokines in cell culture supernatant, samples should be diluted inPBST-B. However, when measuring cytokines in pure serum or plasma, the diluent for the standard and blank control should preferentially be control serum or plasma originating from the same species.Storage kit reagentsThe vials with lyophilized coating antibodies and biotinylated detector antibodies can be safely stored in a refrigerator for a defined length of time (expiry date indicated on the vial). After reconstitution, the antibodies remain fully active for minimal 6 months at 4ºC (39ºF) when kept sterile. However, it is strongly recommended to divide the reconstituted antibody solutions into small aliquots for single use. These aliquots should be stored at ≤-20ºC. Under these conditions the antibodies are stable for at least one year.Upon arrival, the vial with lyophilized SPP conjugate should be stored at ≤ -20°C. Storage of the vial at room temperature or at 4ºC for several months may lead to lower OD readings in the ELISA. After reconstitution, the SPP solution is stable for 2 months at 4°C but rapidly looses activity when stored at room temperature. It is strongly recommended that after reconstitution, the solution is immediately divided into small aliquots for single use and stored at ≤-20°C. Under these conditions SPP is stable for minimal 12 months.Directions for washing•Incomplete washing will adversely affect the assay. All washing must be performed with wash buffer (PBST).•Washing can be performed manually as follows: completely aspirate the liquid from all wells by gently lowering an aspiration tip (aspiration device) into each well. After aspiration, fill the wells with at least 300 µl wash buffer. Let soak for 10 to 20 seconds, then aspirate the liquid. Repeat as directed under "General procedure". After washing, the plate is inverted and tapped dry on absorbent paper.•Alternatively, the wash buffer may be put into a squirt bottle. If a squirt bottle is used, flood the plate with wash buffer, completely filling all wells. After washing, the plate is inverted and tapped dry on absorbent paper.•If using an automated washing device, the operating instructions should carefully be followed.Trouble shooting•Poor consistency of replicates can be overcome by increasing the stringency of washes particularly after the incubation step with detector antibody.•High values of the blank control (optical density > 0.2) can be overcome by shortening the incubation time with the substrate solution or is caused by improper washing procedures. •Inconsistent replicates may be due to cross-contamination of wells by improper pipetting procedures.•If no signal is observed in the wells with the standards•try a new vial with cytokine standard•check the pH of the substrate solution (between 5.0 and 5.5)•verify whether the antibody, SPP conjugate and standardpreparations were properly diluted•Avoid sodium azide in wash buffers and diluents, as this is an inhibitor of peroxidase activity.•Storage of reconstituted SPP at room temperature for several days can lead to a significant loss of SPP activity and consequently low OD readings.ReferencesBooks:•Practice and theory of enzyme immunoassays 1985In: Laboratory techniques in biochemistry and molecular biology, Vol.15 (eds R.H.Burdon and P.H. van Knippenberg)Science Publishers bv, Amsterdam, The Netherlands•ELISA and other Solid Phase Immunoassays.Theoretical and Practical Aspects 1988(eds D.M.Kemeny and S.J.Challacombe)John Wiley & Sons Ltd, Chichester, UK• A practical guide to ELISA 1991(ed D.M.Kemeny) Pergamon Press, Oxford, UKReview of U-CyTech ELISA references:Human cytokines:•Arend, S.M. et al. 2000 J. Infect. Diseases 181: 1850-1854 •Demirkiran, A. et al. 2006 Liver Transpl. 12: 277-284 •Hoogendoorn, M. et al. 2005 Clin. Cancer Res. 11: 5310-5318 •Tang, Y-M. et al. 2006 World J. Gastroenterol. 11: 4575-4578•de Waal, L. et al. 2004 J. Virol. 78: 1775-1781Monkey cytokines:•Fallon, P.G. et al. 2003 J. Infect. Dis. 187: 939-945•Hartman, G. et al. 2005 Vaccine 23: 3310-3317•Kornfeld, C. et al. 2005 J. Clin. Invest. 115: 1082-1091 •Mascarell, L. et al. 2006 Vaccine 24: 3490-3499•Polakos, N.K. et al. 2001 J. Immunol. 166: 3589-3598•de Swart, R.L. et al. 2002 J. Virol. 76: 11561-11569Mouse cytokines:•Eijkelkamp, N. et al. 2004 J. Neuroimmun. 150: 3-9•Kavelaars, A. et al. 2005 J. Neuroimmun. 161: 162-168•Vroon, A. et al. 2005 J. Immunol. 174: 4400-4406Rat cytokines:•Dieleman, J.M. et al. 2006 Life Sci. 79: 551-558•Pacheco-López, G. et al. 2005 J. Neurosci. 25: 2330-2337•Sajti, E. et al. 2004 Brain Behav. Immun. 18: 505-514•Teunis, M.A.T. et al. 2002 J. Neuroimmun. 13: 30-38。
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人Myo-DELISA试剂盒使用说明书
本试剂仅供研究使用目的:本试剂盒用于测定人血清,血浆及相关液体样本中人Myo-D含量。
实验原理:
本试剂盒应用双抗体夹心法测定标本中人Myo-D水平。
用纯化的人Myo-D抗体包被微孔板,制成固相抗体,往包被单抗的微孔中依次加入Myo-D,再与HRP标记的Myo-D抗体结合,形成抗体-抗原-酶标抗体复合物,经过彻底洗涤后加底物TMB显色。
TMB在HRP 酶的催化下转化成蓝色,并在酸的作用下转化成最终的黄色。
颜色的深浅和样品中的Myo-D 呈正相关。
用酶标仪在450nm波长下测定吸光度(OD值),通过标准曲线计算样品中人Myo-D浓度。
样本处理及要求:
1.血清:室温血液自然凝固10-20分钟,离心20分钟左右(2000-3000转/分)。
仔细收集上
清,保存过程中如出现沉淀,应再次离心。
2.血浆:应根据标本的要求选择EDTA、者柠檬酸钠或肝素作为抗凝剂,混合10-20分钟后,
离心20分钟左右(2000-3000转/分)。
仔细收集上清,保存过程中如有沉淀形成,应该再次离心。
3.尿液:用无菌管收集,离心20分钟左右(2000-3000转/分)。
仔细收集上清,保存过程中
如有沉淀形成,应再次离心。
胸腹水、脑脊液参照实行。
4.细胞培养上清:检测分泌性的成份时,用无菌管收集。
离心20分钟左右(2000-3000转/分)。
仔细收集上清。
检测细胞内的成份时,用PBS(PH7.2-7.4)稀释细胞悬液,细胞浓度达到100万/ml左右。
通过反复冻融,以使细胞破坏并放出细胞内成份。
离心20分钟左右(2000-3000转/分)。
仔细收集上清。
保存过程中如有沉淀形成,应再次离心。
5.组织标本:切割标本后,称取重量。
加入一定量的PBS,PH7.4。
用液氮迅速冷冻保存备用。
标本融化后仍然保持2-8℃的温度。
加入一定量的PBS(PH7.4),用手工或匀浆器将标本匀浆充分。
离心20分钟左右(2000-3000转/分)。
仔细收集上清。
分装后一份待检测,其余冷冻备用。
操作步骤
1.标准品的稀释与加样:在酶标包被板上设标准品孔10孔,在第一、第二孔中分别加标
准品100μl,然后在第一、第二孔中加标准品稀释液50μl,混匀;然后从第一孔、第二孔中各取100μl分别加到第三孔和第四孔,再在第三、第四孔分别加标准品稀释液50μl,混匀;然后在第三孔和第四孔中先各取50μl弃掉,再各取50μl分别加到第五、第六孔中,再在第五、第六孔中分别加标准品稀释液50ul,混匀;混匀后从第五、第六孔中各取50μl分别加到第七、第八孔中,再在第七、第八孔中分别加标准品稀释液50μl,混匀后从第七、第八孔中分别取50μl加到第九、第十孔中,再在第九第十孔分别加标准品稀释液50μl,混匀后从第九第十孔中各取50μl弃掉。
(稀释后各孔加样量都为50μl,浓度分别为150 pg/mL,100 pg/mL ,50 pg/mL,25 pg/mL,12.5 pg/mL)。
2.加样:分别设空白孔(空白对照孔不加样品及酶标试剂,其余各步操作相同)、待测样
品孔。
在酶标包被板上待测样品孔中先加样品稀释液40μl,然后再加待测样品10μl(样品最终稀释度为5倍)。
加样将样品加于酶标板孔底部,尽量不触及孔壁,轻轻晃动混匀。
3.温育:用封板膜封板后置37℃温育30分钟。
4.配液:将30(48T的20倍)倍浓缩洗涤液用蒸馏水30(48T的20倍)倍稀释后备用。
5.洗涤:小心揭掉封板膜,弃去液体,甩干,每孔加满洗涤液,静置30秒后弃去,如此
重复5次,拍干。
6.加酶:每孔加入酶标试剂50μl,空白孔除外。
7.温育:操作同3。
8.洗涤:操作同5。
9.显色:每孔先加入显色剂A50μl,再加入显色剂B50μl,轻轻震荡混匀,37℃避光显色
15分钟.
10.终止:每孔加终止液50μl,终止反应(此时蓝色立转黄色)。
11.测定:以空白空调零,450nm波长依序测量各孔的吸光度(OD值)。
测定应在加终止
液后15分钟以内进行。
注意事项:
1.试剂盒从冷藏环境中取出应在室温平衡15-30分钟后方可使用,酶标包被板开封后如未用完,板条应装入密封袋中保存。
2.浓洗涤液可能会有结晶析出,稀释时可在水浴中加温助溶,洗涤时不影响结果。
3.各步加样均应使用加样器,并经常校对其准确性,以避免试验误差。
一次加样时间最好控制在5分钟内,如标本数量多,推荐使用排枪加样。
4.请每次测定的同时做标准曲线,最好做复孔。
如标本中待测物质含量过高(样本OD值大于标准品孔第一孔的OD值),请先用样品稀释液稀释一定倍数(n倍)后再测定,计算时请最后乘以总稀释倍数(×n×5)。
5.封板膜只限一次性使用,以避免交叉污染。
6.底物请避光保存。
7.严格按照说明书的操作进行,试验结果判定必须以酶标仪读数为准.
8.所有样品,洗涤液和各种废弃物都应按传染物处理。
9.本试剂不同批号组分不得混用。
10. 如与英文说明书有异,以英文说明书为准。
计算:
在坐标纸上绘出标准曲线,根据样品的OD
值由标准曲线查出相应的浓度;再乘以稀释
倍数;或用标准物的浓度与OD值计算出标
准曲线的直线回归方程式,将样品的OD值
代入方程式,计算出样品浓度,再乘以稀释
倍数,即为样品的实际浓度。
(此图仅供参考)试剂盒性能:
1.样品线性回归与预期浓度相关系数R值为0.95以上。
2.批内与批见应分别小于9%和11%
检测范围:
6pg/mL -200 pg/mL
保存条件及有效期:
1.试剂盒保存:;2-8℃。
2.有效期:6个月。